Feature Request: being able to require additional packages in the context of the command #10
Description
Hello! Thanks for the package that I use everyday now! It's really really a great idea/work!
I'm coming here with a special case that is not supported yet: I have a phpstan installation running with plugins and also additional rules configured via another package. I cannot run my phpstan with cpx (it makes me sad!) because I need additional packages to make it run with my local configuration.
I don't know if it's possible to imagine something like:
cpx phpstan analyse --level 5 --with-package=foo/phpstan-generic-config
WDYT?